Railway-car underframe



w. P. MURPHY.

RAILWAY CAR UNDERFRAME.

APPLICATION FILED NOV. 7. |917. I 1,347,964, Patented July 27,1920.

2 SHEETS-SHEET I.

@OZ I JJI'IL: I 'I 5 0 @um w. P. MURPHY.. RAILWAY CAR UNDERFRAME.

APPLICATION FILED'NOV. 7, 1917- 1,347,964. Patented July 27, 1920.

2 SHEETS-SHEET 2.

UNITED STATESl PATENT OFFICE.

'WALTER P. MURPHY, oFvNEw YortK, N. Y.

A RAILWAY-CAR UNDERFRAME.

origin@ application med Augiist a, 191s', seriaino. 112,889. Divided andthis application mea Nbveinb'er and State, of New York, have inventedcertain new and useful Improvements in Railway-Car Underframes, ofwhichfthe following is a specification. .Y

My invention relates to certainimprovements in the construction of`under frames for railwayv cars, more 'particularly freight cars. Y Y

The draft arms of railway cars are subject to lateral stresses tendingto break them or tear them from their attachments. For example, thepressures and stresses against the follower plates ofthe draft rigging`are likely to cause these parts to become bent to a greater or lessextent. If bent to any appreciable extent the follower plates have awedging action against the cheek castings tending to spreadthe'samefthereby exerting a lateral stress .uponthe draft arms.

Y It is one of the objects of myV invention to provide a draft arm ofnovel andv improved i construction, which Vcan be used either lon newcars'or in the repair of old cars, more particularly cars havingv woodenunder frames, and which will be light in weight, relatively inexpensiveVto manufacture and at the same time extremely strong andrigid so as tobe capable of withstanding the lateral stresses abovementioned, also thevertical stresses resulting from the up and down movements of thecouplers and'such longitudinal thrustsv as the draft sill must takeunder. the butfing movements of the coupler.

. A furtherobject of thel invention'is to provide an L improved metalreinforcement for the center sills of a freight car having an underframe of wood construction, which will eifectually prevent the sillsfrom being broken,y injured or loosened fromtheir at-v tachmentf tothecarby the inertia shocks and other destructive forces to whichv thesemembers Yare subjected when the car is in service, and -will furnishr arigid structure to which the draft-armsmay be attached.

The invention consists in the novelconstructions, arrangementsjandAdevices to ybe hereinafter described'and claimed, for carrying out-theabove stated objects, together withv other improvements relating to theconstructionof railway car under frames which ing drawings, wherein ofYFig. 2.

7, 1917. Serial'No. 200,703.

VJvill be referred to in the following descripion.

kThis application is a division of :my'copending application Serial No.112,889,.filed August 3, 1916. 1

The invention `is illustrated in certain preferred embodiments in thevaccompany- F igurel is a plan view ofa portion of the under frame anddraft lrigging .of a railway car of wood constructionillustrating oneform of the invention butwith Cer- Y Specification of Letters Patent.Patgnted July 192.0.'

tain parts omitted for the purpose of mak- Y ing' more clear theillustration vof other fea tures. Y

Fig. 2 is a broken longitudinal sectional view of this embodiment of theinvention,

showing the parts omittedfrom Fig. .1, but

omitting the coupler draw bar, follower plates and cheek castings. f

Fig. 3 is a cross-sectional view 0n line 3-3 Fig. fat is a view, inperspective, of one of thecheek castings. .'Fig. 5 is a longitudinalsectional'perspective of the parts shownin Fig. 3.

Figf is a view, in perspective,`of"one of the Vattaching angles used inthe construction shown in the preceding figures.

Fig. 7 isa similar view of the car bolster. t f v Like charactersoflreference designate like parts in the several figures ofthe drawings.Referring -to the drawings' whichzshow fragmentarily the end of thennderframe of a railway car constructed largely.- of wood, with a structureembodying one form a brace .for

- of my invention applied thereto, "25 ldesig 34 the yoke orspring-casing, and 35, 35 follower' plates. draft rigging forms vno partofv my invention.`

.For the purposeof completelyillustrating my invention, lI have shown a`form of draft lrigging of rfamiliar' type lin place between thedraftarms. This device will not It will be understood that the Y Vrequiredescription in detail and it will be understood that the constructionand arrangement constituting my invention are adaptable, with possibleslight modifications well within the scope of ordinary mechanicalYskill,vto any of the draft riggings nowmin use .on railroad cars.VV Itwill also be understood thatl details" of construction of Vthe parts ofthe under frame above referred'tol might'be modified without departurefrom` theinitention which is adaptableto various types of Vunder frame.A

Instead of thefwood orcast metal draft arms heretoforeemployed, Iprovide a pair of pressed steel draft arms 36, V36 formed withlongitudinally extending corrugations 37 and preferably withoutturnedstiffeiiing flanges 38 at their lower edges to which aresecured the usual carry iron 39 and tie plate 40. ,Secured to .the draftarms are cheek castings 41 (Fig. 4) consisting, in each case,

of a longitudinally disposed plate 42 and a transversely disposed plate43 against which the follower plate 35 of the draft rigging' bears.I Theplate 43 is formed with curved projections 44 which enter into thecorrugations `Srof the draft arm. 45, 45 are stiffening webs onthe innersides of plate 42 and 46 are similar Vwebs onV the outer sides of thecasting, the latter webs lying within corrugations 37.

Y Preferably the draft arms are formed with horizontally extendingportions 47 which lie latwise against the under sides of the centersills V-26 Vandare secured thereto by bolts 48. They draft farms areValso provided, preferably',withxextensions 49 offset from thelower-portionsof thev draft arms, formed preferably with jlongitudinallyextending corrugations 50 and secured to the inner sides of center sills26 by bolts 5l.. This arrangement gives the' draft arms very firm `andreliable anchorage andalso serves to Vreinforce the `center sillsagainst their tendencyY to` buckle out under the inertia shocks whichtheunder frame of a car yreceives in service. To further reinforceand'strengthen the center sills'a channel-shaped member 52,

formed with longitudinal corrugations 753, is disposed in invertedarrangement between the center sills 26 and secured to the sillsby theVbolts 5l. Preferablya corrugated plate l54 isrivetedfto the channelmember 52 aboveV tliebody bolster 32; rIt will be seen that the upperportions of theV draft arms, .taken in con'unjction with the member 52rovide a l a P hollow trussiorrreinforcement for the center sillskwhicli will keep them in line and Vprevent them frombei'ng brokenor`torn from theirfattachments. v Y

.The inner ends of the draft arms 36- aresecured to the 'body bolster byangle plates 55. The outer endsv of the draft arms Vare f Y secured byangle plates 56 (Fig. V6) tothe under sides of the end sill 25 and deadwood 27 57 are angles which limit theo'pening vthrough, whichthe couplerdraw bar passes.

Iny order to brace the body bolster and furtherrein-fo-rce the centersills I provide bracing members 58 (Fig. 7) secured to the centersillsand formed with projections 59 bearing against the web of the bolsterand attached thereto by angles 6o-f The' flower 'edges of the bracemembers are formed with out-turned `stiffening flanges 61. 62 is aVpressed steel cross ybrace arranged against the end sill 25 andextending from one draft armto theother. 63 is an angular cross braceabove Vmember 62.I

f l/Vhile IY havedescribed my invention in of the ceiiter'sills, saidoffsets being formed v withV .longitudinal cOrrugatiOnS.

2. The combinationwithtlie wood center i sillsiof a rai'lway'canrof areinforcing structure comprising a steel plate formed withlongitudinally extending corrugations and aianged betweenlandsecuned toVsaid vcenter s1 s.Y i Y 1 Y Y 3. The kcombination `with the wood centersills of arailwaycar,of areinforcing structurecomprisin-g a metal 'sheetVformed with pressed longitudinallyextending rigidifying corrugationsand arranged between and secured to ysaid center sills', and a pressedsteel, longitudinally corrugated draftv 'arin secured to said sillsandreinforcing structure. i

4. The combinationwith the wood center Ysills ofl a railway car, of areinforcing structure'comprisiiiga steel plate formed vwith pressed,longitudinallyeirtending corruga-` tions' and arranged between andsecured to said ycenterV sills, V.andrmetal draft armssecuredV to saidsills and reinforcing strucl ture. i' Y Y Y Y 5; The combination with.the 'end-sill, bolster and center sills of arailway car, of 'areinforcing. structure comprising a metal sheet `formed withxlp'ressed,longitudinally extendingY rigidifying corrugations and` lying betweenandsecured to the# center sills, and longitudinally corrugated pressedsteel draft arms secured at'opposite ends to the end sill vand bolster,respectively, and

provided with upward extensions secured to said center sills andreinforcing structure.

6. The combination with the center sills of a car underfraine of woodconstruction, of a sheet metal reinforcing structure which extendslengthwise of the car between and secured t0 said center sills, andwhich is provided with a plurality of longitudinal corrugations.

7. The combination with the Center sills, end sill and bolster of 4arailway car underframe, of sheet metal longitudinally corrugated draftVarms arranged under and secured lto the center sills with inwardlyprojecting offsets overlapping and secured to the inner sides of saidcenter sills, and a sheet metal reinforcing member extending lengthwisebetween and attached to vsaid sills provided with a yplurality ofreinforcing corrugations.

8. The combination with the center sills, end sill and bolster of arailway car underframe, of sheet metal longitudinally corrugated draftarms arranged under and secured to the center sills with inwardlyprojecting offsets overlapping and secured to the inner sides of saidcenter sills, and a substantially channel shaped reinforcing memberextending lengthwise between said center sills and provided with aplurality of longitudinal corrugations.

9. The combination with the wood center y steel longitudinally sills ofa railway car, of a reinforcing structure arranged between and securedto said sills comprising superposed pressed steel sheets provided with aplurality of Vsaid sills comprising superposed pressed steel sheetsprovided with'a plurality of longitudinal corrugations, and a pressedcorrugated draft arm secured to said sil s and reinforcing structure.

1l. The combination with the wood center sills of a railway car, of asheet metal reinforcing element formed. with rigidifying corrugationsand extending longtitudi? nally of and secured to said centerk sills,and metal draft arms secured to said reinforcing element and centersills.

l2.v In combination with the center sills,

end sill and bolster of a railway car under-l frame, sheet metalcorrugated draft arms arranged under and secured to the center sillswith inwardly projecting offsets overlapping and secured to the'innersides of said center sills, and a pressed metal inverted channel-shapedreinforcing member extending lengthwise between said center sills andprovided with a plurality of longitudinal corrugations.

WALTER P. MURPHY.

